Improvement in sad-irons



drilledA tair THEODOR Gr. EISWALD, 0F PROVIDENCE, RHODE-ISLAND.

Letters Patent No. 96,683, dated November 9, 1869.

` IMPROVEMENT IN SAD-IRONS.

The Schedule referred to in these Letters Patent and making part of thelsame Toall whom lit may concern v Be it known that I, T HEoDoR G.EIswALD, ofthe city and county of Providence, in the State of RhodeIsland, have invented a certain new and useful Sad- Iron.

My invention consists in the combination of a non; corrosive metallicshoe, with an iron body, and in so constructing the same that -itsinterior may be, andy is, lled with melted or powdered slag, sand, orother similar substances; and I do hereby declarethat the followingspecication, taken in connection with the drawings furnished, andforming a part of the same, is a true, clear, and exact descriptionthereof.

Figure l represents one of my improved sad-irons, 4in perspective. i

A represents the body ofthe sad-iron.

B is the non-corrosive metallic shoe.

C is a cap or plug, filling an opening to the interior.

Figure 2 represents the same in vertical longitudinal section.

Parts are lettered as in fig. 1. v

I) is the slag, sand, or other similar substance, closely vfilling thecavity within the sad-iron.

Thev mode'of constructing my improved sad-irons may be varied asdesired. I prefer, however, to cast the body of the iron as shown in thedrawings, and secure the shoe thereto, after the interior has been welland closely packed with the slag, sand, or their equivalents. y

Should slag be preferred, it should be inserted in its melted state, asit Hows from the furnace.

The lower edge'of the iron beingY cast with a flaring edge, the shoe isreadily secured thereto, by hammering its upper edges when inv position.

The plug C is provided, in order to admit of the supplying of anydeficiency of slag or sand that might occur in the making of thesad-iron, as described.

It is4 well known that one of the inconveniences attendant upon the useof the ordinary sad-iron is the great susceptibility of thepolishedsurface to -corrosion.

vIhe foot or shoe 1 of my improved sad-iron, as shown in the' drawings,should be made of any sucie'ntly hard non-corrosive metal, such as finebrass, bronze, or gun-metal, which would not only possess the desirabledegree of non-corrosiveness, but be susceptible of a fine polish, and.be also a ready conductor of heat.

In practice it is proven that a sad-iron, constructed as'described,will..-ta'ke heat rapidly, and ti'oln the fact that the metal composingthe non-corrosive shoe is a more ready conductor of l caloric than iron,the heat f expends itself through the same upon the article beingsmooth, instead of its being exhausted or thrown ott' from its outer andupper surfaces, as in the case of the ordinary sad-iron.

The value of slag or sand, or their equivalents, as retainers ofcaloric, is well known. By their use in this connection a desirablevolume of heat is concentrated. rIhey add to the weight of the sad-iron,and

therein serve an economical purpose, as less metal is requisite forproducing the desired weight.

I n making a sad-iron, as herein described, its cost, as compared withthe old styles, is found to be but little if any greaterand in practice,it is found to be much more useful and desirable.

'Having thus described my invention,

I claim as new, and desire to secure by Letters latent'-v The improvedsad-iron herein described, consisting of the hollow iron body, filledwith slag, sand, or other similar substance, and prov-ided'with apolishedshoe, composed of a non -corrosive metal, possessing therequisite 'heat-conducting qualities, constructed as described, for thepurposes specified.

Witnesses; THEODOR G. EISWALD.

W. B. Vr-Nonni', JOHN D. W. TAYLOR.

